|Número de publicación||US4995200 A|
|Tipo de publicación||Concesión|
|Número de solicitud||US 07/485,971|
|Fecha de publicación||26 Feb 1991|
|Fecha de presentación||27 Feb 1990|
|Fecha de prioridad||27 Feb 1990|
|Número de publicación||07485971, 485971, US 4995200 A, US 4995200A, US-A-4995200, US4995200 A, US4995200A|
|Cesionario original||Edward Eberhart|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (5), Citada por (51), Clasificaciones (6), Eventos legales (4)|
|Enlaces externos: USPTO, Cesión de USPTO, Espacenet|
Hand tool for sanding wood and plastic with removable and replaceable belts.
The present invention is intended to be an improvement on a sanding tool previously patented by myself and Arlen Ingram in U.S. Pat. No. 4,694,618 dated Sept. 22, 1987. The Ingram device utilized a metal frame with a handle at one end and spaced parallel bars connected by a slightly resilient rod. A closed loop of abrasive material is suspended between the bars and tensioned by the connecting rod.
Other patents include Miller U.S. Pat. No. 2,424,702 (1947) on an abrasive strip holder, and Bonapace U.S. Pat No. 3,871,141 (1975) on a knife sharpener. Miller shows a tapered belt looped over at one end on a solid mandrel and carried at the other end on a lateral peg on a handle body element. Bonapace shows a knife sharpener with a tensioning head backed by a coil spring.
The present invention has as an object the provision of a sanding tool with three elemental parts using a flat closed loop which can be tensioned by a threaded adjustment and which is so designed that it can be inserted to narrow crevices with no interference from the supporting frame. The supporting structure provides a double faced sanding tool which increases from a vary narrow distal end to a wide proximal end so it can be utilized on one or both sides in closely spaced parts.
In brief, the object of the invention is achieved by three main parts. A first basic body part has at a distal end a narrow reaction cross-bar extending transversely of the axis of the body. The body has an elongate torque which tapers from a narrow dimension at the cross bar to a wider square or rectangular head end. Beyond the head end is a control shaft also on the axis of the body. A second element is a proximal sanding loop retainer having an opening to receive the control shaft and also a square or rectangular opening to receive the head end of the body. The second element has also a threaded extension boss element, internal or external, opposite the square opening to receive the third element. The third element is a hollow handle and tension control device which receives the control shaft and has also a threaded element to cooperate with the threaded boss of the second element.
An abrasive band is formed as a loop with an aperture to receive the threaded boss as the parts are assembled. In assembly, the boss of the second element is located in the aperture at one end of the abrasive loop, the basic body is positioned with the cross bar at the other end of the loop and the control shaft is passed through the second element into the hollow handle. The threaded elements are engaged and the handle is screwed onto the retainer. This will tension the sanding loop. The limit of the tension can be controlled by the shaft abutting the end of the hollow passage.
Additional objects and features of the invention will be apparent in the following description and claims in which the principles of the invention are set forth together with details to enable persons skilled in the art to practice the invention, all in connection with the best mode presently contemplated for the invention.
DRAWINGS accompany the disclosure and the various views thereof may be briefly described as follows:
FIG. 1, a perspective view of the unassembled parts of the invention.
FIG. 2, a plan view of the assembled parts.
FIG. 3, a side view of the assembled parts prior to tensioning taken on line 3--3 of FIG. 2.
FIG. 4, a side view of the assembled parts with the sanding loop fully tensioned.
WITH REFERENCE TO THE DRAWINGS, in FIG. 1, a basic elongate body element 20 is illustrated with a relatively thin reaction cross bar 22 at the end of a tapered tongue member 24 which is relatively thin at 25 where it joins the cross bar 22. The body tongue element tapers in two dimensions to a head end 26 which is rectangular in cross-section. Extending from the head end 26 is a control shaft 28 coaxial with the general axis of the body 24.
A second element of the invention is a sanding loop retainer 30 which is essentially a hollow cylinder with a rectangular opening 32 and a boss extension 34 threaded internally on an axis coincident with the general axis of the body.
The third element of the invention is a control handle 40 which has a central bore 42 to receive the shaft 28. The bore 42 is closed at the proximal end at 45 but has a loop 44 to allow the tool to be suspended on a tool board. At the distal end of handle 40 is a threaded extension 46 which will thread into the internally threaded boss 34. This threaded relationship could be reversed by externally threading the boss 34 and internally threading the handle 40.
The sanding loop 50 is formed of a suitable flexible base of cloth or plastic with a granular exterior coating with such fineness or courseness as may be desired. A bight portion of the loop has a cut-out opening 52 to receive the boss 34 on retainer 30.
In assembly, the retainer element is first assembled in the apertured end of the loop 50 with the boss 34 projecting through the opening 52. The body element is then assembled by passing the shaft 28 through the openings 52 and 32 and through the boss 34. The transverse reaction bar 22 is then positioned in the distal end of the loop 50. Next the handle 40 is passed over the shaft 28 and threaded into the boss 34. At this stage, the part may appear as in FIG. 2 with the loop not drawn taut. By screwing the handle 40 further into the boss 34 tension is applied to the loop as the shaft 28 reaches the end 45 of the boss and endwise pressure on shaft 28 pushes the body 24 down to the distal end of cross bar 22 of the sanding loop.
The shape of the tongue body 24 and the cross bar 22 is significant in connection with the use of the sanding tool. The narrowed portion of the body adjacent the cross bar allows the loop to be recessed in toward the body so the loop can take a depressed curved position where it is desired to sand surfaces which are not flat. Pressure on the surfaces of the loop affords this flexibility without a grounding out of the sanding surface which might cause undue cutting on the surface being treated.
The location of the acircular rectangular head 26 in the recess 32 allows full control of the tool by the user holding the handle. The parts will not twist relative to each other when pressure is applied to one side or the other of the loop. The shape of the retainer element 30 is such that the head end of the tongue element has a sliding relationship in the recess 32 to allow for axial tensioning motion.
It will be seen that it would be simple matter to remove and replace sanding loops to change the grade of fineness or to replace when worn.
|Patente citada||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US2424702 *||10 Abr 1946||29 Jul 1947||Miller Elmer V||Abrasive strip holder|
|US2447327 *||20 Mar 1947||17 Ago 1948||Gerrits Adrian E||Abrasive tool|
|US2871630 *||22 May 1957||3 Feb 1959||Whitlock James B||Polishing file|
|US3871141 *||14 May 1973||18 Mar 1975||Bonapace Mario J||Knife sharpener and edge straightener|
|US4694618 *||31 Mar 1986||22 Sep 1987||Arlen E. Ingram||Sanding tool|
|Patente citante||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US5795217 *||22 Nov 1995||18 Ago 1998||International Business Machines Corporation||Stressed burnisher|
|US7553307||15 Oct 2005||30 Jun 2009||Baxano, Inc.||Devices and methods for tissue modification|
|US7555343||15 Oct 2005||30 Jun 2009||Baxano, Inc.||Devices and methods for selective surgical removal of tissue|
|US7578819||13 Jul 2006||25 Ago 2009||Baxano, Inc.||Spinal access and neural localization|
|US7738968||15 Oct 2005||15 Jun 2010||Baxano, Inc.||Devices and methods for selective surgical removal of tissue|
|US7738969||21 Ene 2009||15 Jun 2010||Baxano, Inc.||Devices and methods for selective surgical removal of tissue|
|US7740631||15 Oct 2005||22 Jun 2010||Baxano, Inc.||Devices and methods for tissue modification|
|US7857813||29 Ago 2006||28 Dic 2010||Baxano, Inc.||Tissue access guidewire system and method|
|US7887538||13 Mar 2006||15 Feb 2011||Baxano, Inc.||Methods and apparatus for tissue modification|
|US7918849||15 Oct 2005||5 Abr 2011||Baxano, Inc.||Devices and methods for tissue access|
|US7938830||17 Abr 2006||10 May 2011||Baxano, Inc.||Powered tissue modification devices and methods|
|US7959577||14 Jun 2011||Baxano, Inc.||Method, system, and apparatus for neural localization|
|US7963915||15 Oct 2005||21 Jun 2011||Baxano, Inc.||Devices and methods for tissue access|
|US8048080||4 May 2006||1 Nov 2011||Baxano, Inc.||Flexible tissue rasp|
|US8062298||16 Mar 2007||22 Nov 2011||Baxano, Inc.||Flexible tissue removal devices and methods|
|US8062300||16 Mar 2007||22 Nov 2011||Baxano, Inc.||Tissue removal with at least partially flexible devices|
|US8092456||13 Ene 2009||10 Ene 2012||Baxano, Inc.||Multiple pathways for spinal nerve root decompression from a single access point|
|US8192435||15 Oct 2005||5 Jun 2012||Baxano, Inc.||Devices and methods for tissue modification|
|US8192436||26 Nov 2008||5 Jun 2012||Baxano, Inc.||Tissue modification devices|
|US8221397||22 Abr 2009||17 Jul 2012||Baxano, Inc.||Devices and methods for tissue modification|
|US8257356||27 May 2008||4 Sep 2012||Baxano, Inc.||Guidewire exchange systems to treat spinal stenosis|
|US8303516||20 Abr 2011||6 Nov 2012||Baxano, Inc.||Method, system and apparatus for neural localization|
|US8366712||6 Dic 2011||5 Feb 2013||Baxano, Inc.||Multiple pathways for spinal nerve root decompression from a single access point|
|US8394102||25 Jun 2010||12 Mar 2013||Baxano, Inc.||Surgical tools for treatment of spinal stenosis|
|US8398641||27 Dic 2011||19 Mar 2013||Baxano, Inc.||Tissue modification devices and methods|
|US8409206||4 May 2010||2 Abr 2013||Baxano, Inc.||Tissue modification devices and methods|
|US8419653||16 Jul 2009||16 Abr 2013||Baxano, Inc.||Spinal access and neural localization|
|US8430881||17 Abr 2006||30 Abr 2013||Baxano, Inc.||Mechanical tissue modification devices and methods|
|US8551097||1 Nov 2010||8 Oct 2013||Baxano Surgical, Inc.||Tissue access guidewire system and method|
|US8568416||17 Ago 2012||29 Oct 2013||Baxano Surgical, Inc.||Access and tissue modification systems and methods|
|US8579902||26 Mar 2012||12 Nov 2013||Baxano Signal, Inc.||Devices and methods for tissue modification|
|US8585704||6 Oct 2011||19 Nov 2013||Baxano Surgical, Inc.||Flexible tissue removal devices and methods|
|US8613745||20 May 2011||24 Dic 2013||Baxano Surgical, Inc.||Methods, systems and devices for carpal tunnel release|
|US8617163||20 May 2011||31 Dic 2013||Baxano Surgical, Inc.||Methods, systems and devices for carpal tunnel release|
|US8647346||31 May 2012||11 Feb 2014||Baxano Surgical, Inc.||Devices and methods for tissue modification|
|US8652138||23 Sep 2011||18 Feb 2014||Baxano Surgical, Inc.||Flexible tissue rasp|
|US8663228||14 Sep 2011||4 Mar 2014||Baxano Surgical, Inc.||Tissue modification devices|
|US8801626||29 Dic 2011||12 Ago 2014||Baxano Surgical, Inc.||Flexible neural localization devices and methods|
|US8845637||11 Sep 2013||30 Sep 2014||Baxano Surgical, Inc.||Tissue access guidewire system and method|
|US8845639||14 Ene 2011||30 Sep 2014||Baxano Surgical, Inc.||Tissue modification devices|
|US9101386||25 Oct 2010||11 Ago 2015||Amendia, Inc.||Devices and methods for treating tissue|
|US9125682||1 Feb 2013||8 Sep 2015||Amendia, Inc.||Multiple pathways for spinal nerve root decompression from a single access point|
|US20060089609 *||15 Oct 2005||27 Abr 2006||Baxano, Inc.||Devices and methods for tissue modification|
|US20060089633 *||15 Oct 2005||27 Abr 2006||Baxano, Inc.||Devices and methods for tissue access|
|US20060089640 *||15 Oct 2005||27 Abr 2006||Baxano, Inc.||Devices and methods for tissue modification|
|US20060094976 *||15 Oct 2005||4 May 2006||Baxano, Inc.||Devices and methods for selective surgical removal of tissue|
|US20060095028 *||15 Oct 2005||4 May 2006||Baxano, Inc.||Devices and methods for tissue access|
|US20060100651 *||15 Oct 2005||11 May 2006||Baxano, Inc.||Devices and methods for tissue access|
|US20060122458 *||15 Oct 2005||8 Jun 2006||Baxano, Inc.||Devices and methods for tissue access|
|US20060264162 *||23 May 2005||23 Nov 2006||Roger Yu||Fine abrasive tool and method of making same|
|DE19818071A1 *||22 Abr 1998||28 Oct 1999||Helmut Hammermeister||Manual abrasive apparatus for fabric tape abrasive paper|
|Clasificación de EE.UU.||451/504, 451/524, 451/490|
|15 Ago 1994||FPAY||Fee payment|
Year of fee payment: 4
|22 Sep 1998||REMI||Maintenance fee reminder mailed|
|28 Feb 1999||LAPS||Lapse for failure to pay maintenance fees|
|11 May 1999||FP||Expired due to failure to pay maintenance fee|
Effective date: 19990226